#
# Copyright 2020 Google LLC
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
#      http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.

# An example of a chain broken due to lack of files.
# See chain_test on how to test it.

@Engine("bigquery");

A("data");

B(x) :- A(x);

@Ground(C);
C(x) :- B(x);

SaveC() += 1 :- C();

@Ground(D, C);
E(x) :- D(x);

F(x) :- E(x);
